January 8, 2019
Company Name:

GMO Internet, Inc.
(TSE First Section, Code: 9449)

Address:

26-1 Sakuragaoka-cho Shibuya-ku Tokyo JAPAN

Representative:

Masatoshi Kumagai, CEO and Representative Director

Contact:

Masashi Yasuda, Chief Financial Officer

Telephone:+81 3 5456 2555

URL:

https://www.gmo.jp/en

Cryptocurrency Mining Business: Monthly Report for December 2018 and Termination of
The Monthly Report
GMO Internet, Inc. hereby announces the monthly mining reward*1 and hash rate*2 in our cryptocurrency miningbusiness. In addition, we will no longer provide the monthly report on cryptocurrency mining business from thisyear.

[December 2018]
Regarding the in-house mining using existing mining technologies, as announced in the press release"Recording Extraordinary Loss Related to The Cryptocurrency Mining Business Restructuring" published on
December 25, 2018, we will relocate the mining center to a region that will allow us to secure less expensive
power supply, and the hash rate has remained at the same level as November 2018.
The market’s total hash rate decreased, so our mining share rose and our mining reward expanded.
(Reference) rate as of the endMining reward *2of each month

Bitcoin

Bitcoin Cash(unit: BTC)

(unit: BCH)

JPY/BTC

Hash rate

JPY/BCH(unit: PH/s)

Dec 2017

21

213

1,682,581

288,439

22

Jan 2018

93

25

1,093,163

159,34827

Feb 2018

124

287

1,132,780

131,655

108

Mar 2018

295

12740,777

73,773

129

Apr 2018

373

01,013,978150,450241

May 2018

472

37821,434

108,909299

Jun 2018

528

62703,950

80,387384

Jul 2018

568

0861,161

85,882384

Aug 2018510

25

781,826

60,437459

1

Sep 2018

512

0745,206

59,363479

Oct 2018

595

875

710,81747,831674

Nov 2018

696400450,211

19,472668

Dec 2018

960

0404,637

16,422670*1：

Mining reward is gained as a result of mining cryptocurrencies. We are currently mining Bitcoin(unit: BTC) and Bitcoin Cash (unit: BCH).

*2：

Hash rate is an indicator of mining performance, the unit of which is H/s (the amount ofcomputation per second). One PH/s means the amount of computation is 1 peta (1,000 trillion)
times per second.
Hash rate is an important indicator for estimating our mining share. Our mining share depends onthe market’s total hash rate, so increased hash rate does not necessarily lead to increased mining
reward. For each currency pair, profitability fluctuates and the allocation of hash rate is based on
an algorithm. The above figures are as of the end of each month.

2. Termination of the monthly report
GMO Internet has been reporting on a monthly basis to quickly tell all stakeholders, including shareholders andinvestors, the major KPIs of our cryptocurrency mining business.
GMO Internet will review the revenue structure of its in-house mining business, and no longer develop,
manufacture, and sell mining machines, as announced in the press release "Recording Extraordinary Loss
Related to The Cryptocurrency Mining Business Restructuring" published on December 25, 2018.
We will no longer provide the monthly report on cryptocurrency mining business from this year. We will disclose
the business results and the KPIs of our cryptocurrency mining business when making a quarterly earnings
announcement, thereby helping our stakeholders to understand the business properly.
GMO Internet will actively disclose useful information for our stakeholders to make investment decisions.

2